<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    .container {
        display: flex;
    }

    .left {
        width: 267px;
        height: 100vh;
        background-color: red;
        flex-shrink: 0;
    }

    .right {
        width: 100%;
        height: 100vh;
        background-color: green;
        display: flex;
        padding: 21px 23px;
    }

    .item1 {
        width: 489px;
        height: 60px;
        background-color: blue;
        margin-right: 21px;
    }

    .item2 {
        width: 464px;
        height: 60px;
        background-color: yellow;
        margin-right: 21px;
    }

    .item3 {
        width: 604px;
        height: 60px;
        background-color: orange;
    }


</style>

<body>
    <div class="container">
        <div class="left"></div>
        <div class="right">
            <div class="item1"></div>
            <div class="item2"></div>
            <div class="item3"></div>
        </div>
    </div>
<script>
    console.log('windows.innerHeight', window.innerHeight);
    console.log('windows.innerWidth', window.innerWidth);
    
</script>
</body>

</html>